import numpy as np
import matplotlib.pyplot as plt
E=[81.97400737666324, 322.0939978589591, 694.5766491226185]
V0=1000
a=0.1
def V(x):
if x > -a and x < a:
return 0
return V0
V=np.vectorize(V)
#psi=np.vectorize(psi)
x= np.linspace(-1.5*a,1.5*a,100)
plt.plot(x,V(x))
plt.xlim(-5*a,5*a)
plt.ylim(-.001*V0,1.01*V0)
for m in E:
x1=np.linspace(-a,+a,100)
#y=m
#plt.xlim(-5*a,5*a)
#plt.axhline(m)
#y=np.vectorize(y)
plt.plot(x1,m)
#plt.show()
print m
Error:
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
C:\Python27\lib\site-packages\IPython\utils\py3compat.pyc in
execfile(fname, glob, loc)
166 else:
167 filename = fname
--> 168 exec compile(scripttext, filename, 'exec') in glob, loc
169 else:
170 def execfile(fname, *where):
C:\Users\as\uy.py in <module>()
23 #plt.axhline(m)
24 #y=np.vectorize(y)
---> 25 plt.plot(x1,m)
26 #plt.show()
27 print m
C:\Python27\lib\site-packages\matplotlib\pyplot.pyc in plot(*args, **kwargs)
2456 ax.hold(hold)
2457 try:
-> 2458 ret = ax.plot(*args, **kwargs)
2459 draw_if_interactive()
2460 finally:
C:\Python27\lib\site-packages\matplotlib\axes.pyc in plot(self, *args, **kwargs)
3846 lines = []
3847
-> 3848 for line in self._get_lines(*args, **kwargs):
3849 self.add_line(line)
3850 lines.append(line)
C:\Python27\lib\site-packages\matplotlib\axes.pyc in
_grab_next_args(self, *args, **kwargs)
321 return
322 if len(remaining) <= 3:
--> 323 for seg in self._plot_args(remaining, kwargs):
324 yield seg
325 return
C:\Python27\lib\site-packages\matplotlib\axes.pyc in _plot_args(self,
tup, kwargs)
298 x = np.arange(y.shape[0], dtype=float)
299
--> 300 x, y = self._xy_from_xy(x, y)
301
302 if self.command == 'plot':
C:\Python27\lib\site-packages\matplotlib\axes.pyc in _xy_from_xy(self, x, y)
238 y = np.atleast_1d(y)
239 if x.shape[0] != y.shape[0]:
--> 240 raise ValueError("x and y must have same first dimension")
241 if x.ndim > 2 or y.ndim > 2:
242 raise ValueError("x and y can be no greater than 2-D")
ValueError: x and y must have same first dimension
Question:
then how to plot those specific component of E within the square well only?
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